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Recovery of rhenium(VII) with triisooctylamine from ...

Extraction recovery of rhenium(VII) with triisooctylamine from model sulfuric acid solutions was studied. The effect of the composition of the organic and aqueous phases on the recovery of rhenium(VII) was analyzed, and the composition of rhenium(VII) complexes in the organic phase was determined. The possibility of effective re-extraction of rhenium(VII) from triisooctylamine …

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Rhenium | TM2 | Technology Metals Market

A Rhenium recovery facility in Utah was closed in 2019; however, the company announced the possibility of reopening the facility in the near future. During 2020, the United States continued to rely on imports (mainly from Canada, Chile, Germany, and …

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Leaching kinetics, separation, and recovery of rhenium and ...

Apr 01, 2019· The recovery of rhenium has been monitored until no further significant increase in recovery was observed. The leaching of rhenium from superalloy scraps in (v/v) aqua-regia solution at solid-to-liquid ratios of 25 g L −1, 65 g L −1, and 100 g L −1 were investigated to study effect of solid-to-liquid ratio on leaching rate and ...

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V - Institute of Physics

The improvement of rhenium recovery technology from W-Re alloys O G Kuznetsova, A M Levin, M A Sevostyanov and A O Bolshih A.A. Baikov Institute of Metallurgy and Materials Science of Russian Academy of Science, 49 Leninsky pr., Moscow, Russian Federation Abstract. The lack of rhenium raw materials sources on the territory of Russia leads to the

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The Development and Applications of the Dust and Rhenium ...

A device, was used to recover dust and rhenium from molybdenum concentrate roasting exhaust gas, was developed. The device combine the self-swash dust catcher and spherical tray tower technology: the self-swash dust catcher was used to recover dust and rhenium; spherical tray tower was used to further dust and rhenium recovery and its application to engineering in …

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Recovery of Molybdenum and Rhenium Using Selective ...

Recovery of Molybdenum and Rhenium Using Selective Precipitation Method from Molybdenite Roasting Dust in Alkali Leaching Solution Sung-Ho Joo1,2, Young-Uk Kim1, Jin-Gu Kang 2, Ho-Sung Yoon, Dong-Su Kim3 and Shun Myung Shin1,2,+ 1Department of Resource Recycling, University of Science & Technology (UST), Daejon 305-350, Korea 2Metal Recovery Group, …

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How to Separate & Recover Molybdenum & Rhenium

Jan 05, 2021· Projections for the expanded use of rhenium as a catalyst in the catalytic reforming of gasoline stocks to make low-lead gasoline prompted the Federal Bureau of Mines to investigate techniques for rhenium and molybdenum separation and recovery. In current technology, rhenium is recovered from the roaster gases produced during the oxidation of ...

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US8956582B2 - Rhenium recovery - Google Patents

There is provided a hydrometallurgical process of recovering rhenium values from mixtures thereof with other metal values in which the rhenium values constitute a minority amount, for example super-alloys, which comprises subjecting the mixture to strongly oxidizing acid conditions, preferably an aqueous mixture of hydrochloric acid and nitric acid, so as to form …

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Precious Metals Recovery and Refining

technology allows us to offer you the same performance and quality standards for recovering and refin-ing spent catalysts with rhenium components that we have provided our worldwide customer base for more than 60 years. Consider these Sabin advantages for rhenium recovery. n Rhenium recovery from spent semi-regenerative and cyclic

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Recovery Rhenium Market Share, Size, Revenue, Gross Margin ...

Feb 27, 2020· Chicago, United States, Feb 27, 2020 — Report Hive Research adds Recovery Rhenium Market report to its market research database. This report is a detailed study of core market elements which represents concise analysis of the growth factors impacting the business scenario in the next five years to come.

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Rhenium Production - ISTC

Uranium-containing precipitates are processed using separate technology. Rhenium content in solutions resulting from underground leaching is not higher than 0.2 – 0.4 mg/L. Though rhenium content in the solutions is low, a potential rhenium production by three mining pisions of "Kazatomprom" National Company could reach 6 tons per year.

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Extractive metallurgy of rhenium: a review | SpringerLink

Feb 01, 2013· A variety of processing technologies exist for recovery from both primary and secondary sources of rhenium. Currently, there are no known primary rhenium deposits; thus, the method in which primary rhenium is produced is dependent on the commodity of which it is a byproduct, e.g., copper, molybdenum, uranium, etc. In addition, focus on the recovery of …

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Recovery of Rhenium from Superalloy Scrap | SBIR.gov

Information on the recycling rates of the remaining 80% of rhenium products is quite limited, although it is postulated to be sufficiently lower than the Pt-Re catalyst industry. Thus, the largest area for potential research may be the recovery and subsequent reuse of the rhenium in superalloys and various rhenium containing products.

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Sorption recovery of rhenium from chromium-containing ...

Oct 24, 2015· Low-basic Cybber anionites with various functional groups and a matrix type are tested for the recovery of rhenium from multicomponent sulfuric acid solutions. It is established that anionite SX002 manifests an increased capacity during the sorption from solutions with a low Re content, while anionite ALX220 is applicable to recover Re at its high concentrations in the …

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US5542957A - Recovery of platinum group metals and rhenium ...

Platinum group metals and rhenium are extracted from their elemental state, complex ores, and other materials such as catalysts by leaching them with a solution containing ammonium halogen salts--iodide and bromide in the presence oxygen and/or sulfuric acid. The invented process is particularly effective for spent catalysts containing precious metals and rhenium in an …

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Precious metals recovery and refining for global industry…

rhenium from hydrocarbon processing catalysts. Innovative technology allows us to offer the same performance and quality standards for recovering and refining rhenium as our other precious metals recovery processes. • Rhenium recovery from spent semi-regenerative and cyclic fixed-bed catalysts • Rhenium returned as ammonium perrhenate to

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Recovering platinum/rhenium from spent hydrocarbon ...

Platinum / rhenium catalysts are widely used in the processing of hydrocarbon products. As rhenium values have increased, recovery techniques from spent catalysts have not kept pace. However, most users look to their refiners for increased recovery yields. Finally, there is a practical, cost-effective breakthrough that addresses this issue ...

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Rio Tinto Kennecott smelter - Outotec

Jul 03, 2017· Rhenium is, without a recovery plant, ultimately lost to the Hydromet Plant tails. The Smelter recently commissioned a new plant to recover Rhenium and the plant has been integrated with the existing Hydromet Plant (HMP). Copper anode fire-refining and scrap melting using Praxair Co-Jet™ technology

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[11]Kuznetsova O G, Levin A M, Sevostyanov M A, et al.The improvement of rhenium recovery technology from W-Re alloys[J].Journal of Physics Conference Series, 2018, 1134(1):012032-

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Electrochemical recovery of rhenium from W–Re alloys in ...

May 06, 2017· V. P. Guro and A. A. Belov, "Repeated removal of ammonium perrhenate and the recovery of rhenium from the wastes of rhenium-containing alloys," in Proceedings of Conference on Resource-Recycling, Low- Waste, and Nature-Saving Technologies of Land Reclamation (Ust'-Kamenogorsk, 2012), pp. 165–166. Google Scholar 7.

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Novel Aqueous Processing of the Reverted Turbine-Blade ...

Jul 02, 2016· A preliminary study on the hydrometallurgical recovery of rhenium from an engine-reverted superalloy, CMSX-4, was performed. The novelty of this work dealt with (i) the applicability of electro-generated Cl2 in rhenium leaching and (ii) the maneuvering of the organic extractants based on the metal speciation in leach liquor. In a two-step HCl leaching, more …

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Recovery of Radiogenic Osmium-187 from Sulfide Copper Ores ...

The implementation of this technology of processing mother liquor derived from solid-phase stripping of rhenium results in an average recovery from these solutions of 80 per cent of the osmium metal. (80 per cent is direct recovery of osmium from the mother liquor, the other 20 per cent in solid and liquid byproducts is recycled.)

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Rhenium Market Reliant on Aerospace for Recovery

Jul 28, 2010· Business Technology Entertain­ment & Media ... 8 3 Reserves and resources of rhenium 11 4 Rhenium recovery processes 13 5 World production of rhenium 15 5.1 Production by country 15 5.2 Primary ...

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(PDF) Review of technologies for rhenium recovery from ...

The technology of recovery of rhenium from the dusts of lead. production is shown in Fig. 3. The countercurrent solvent extraction is. carried out in the titanium mixer-settler extractors. Four ...

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Towards the Recovery of By-Product Metals from Mine Wastes ...

Rhenium is a very scarce element, occurring in the Earth's crust mainly carried by molybdenite (MoS2). Due to a very low availability comparative to actual industrial demand, rhenium is nowadays one of the most expensive mineral commodities and an increased interest is focused on ex- ploring residues resulting from a long-term mining, particularly of sulphide ore deposits.

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Rhenium Metal - Titan International, Inc. | rhenium metal ...

Rhenium Pellets. Titan's rhenium pellets are ideal for alloy melting. Standard packaging includes argon cover gas for safe storage in small increments. Whether your application is land based turbines or high performance jet engines, buying from Titan ensures the highest quality Rhenium pellets with excellent melt recovery.

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3D Cationic Polymeric Network Nanotrap for Efficient ...

Rhenium is one of the most valuable elements found in nature, and its capture and recycle are highly desirable for resource recovery. However, the effective and efficient collection of this material from industrial waste remains quite challenging. Herein, a tetraphenylmethane-based cationic polymeri …

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INTERNATIONAL SYMPOSIUM ON RHENIUM AND RHENIUM …

The technology for the recovery of rhenium and osmium from sulfuric acid scrub solutions formed by wet gas purifying in pyrometallurgical processing of sulfide polymetallic ores was developed. The technology is based on extraction and sorption techniques following preliminary conversion of the metals into the optimal chemical species. The ...

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Recovery of Molybdenum & Rhenium From Molybdenite …

May 22, 2017· Electrooxidation in the prototype cell resulted in 84 to 97 pct Mo and Re extraction with a corresponding energy consumption of 9 to 13 kwhr/lb Mo extracted. As part of the effort to improve the Nation's minerals technology base, the Bureau of Mines investigated a process to extract molybdenum and rhenium from molybdenite concentrates.

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US8038764B2 - Rhenium recovery from superalloys and ...

A method of recovering rhenium from rhenium-containing superalloy scrap is provided. The superalloy is usually a nickel-based superalloy. The method includes the steps of forming an oxidation feedstock of flaky morphology of the superalloy scrap, and oxidizing the oxidation feedstock to convert rhenium into a volatile rhenium oxide. The flaky morphology of the …

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Recovery of Platinum and Rhenium from Waste-spent ...

Mar 31, 2016· The recovery of platinum achieves 96.0%, and the purity of sponge platinum climbs to 99.95%, and rhenium recovery rate reaches 85.0% with a purity of 99.5% or more. 2. Technical Specifications

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US20030119658A1 - Recovery of rhenium from a spent ...

This invention provides a method for recovering rhenium oxide from a material containing rhenium by itself or rhenium in combination with some other element, such as an element catalytically active for a catalytic process, such as hydrogenation, oxidation, reforming, and hydrocracking. The method includes conversion of rhenium to a sublimable oxide via …

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